I have a 70 truck that needs VIN rivets. I know the rosettes are available, but it doesn't use rosettes. These have a thicker, more domed head, and might be stainless. Although they drilled out like aluminum. I already checked with ECS, after seeing them reply to a post for rosettes.

I know these are correct, I have a couple other trucks with the same setup. This truck happens to have 2 plates, the second plate just shows extra equipment and was held on either a regular pop rivet.

You can see the difference here.